Poaching and habitat loss have devastated tiger populations but in the coming years, the new threat of infrastructure projects could pose the biggest risk to the imperilled cats, a report said Wednesday.

Massive public transportation infrastructure projects are notorious for exceeding both budgets and deadlines. Think Boston's Big Dig, finally completed eight years late and billions of dollars over budget.

Conservationist group WWF on Tuesday urged Romania and Bulgaria, home to the last viable wild sturgeon populations in the European Union, to protect the species, threatened by illegal fishing and caviar trade.

California could use $44.5 billion to fix aging water systems over the next two decades, according to a federal survey that placed the state at the top of a national list of water infrastructure needs.

Siemens is ensuring the safe and smooth operation of what will be the world's fourth-longest suspension bridge - a structure that will have a main span length of 1,550 meters and rise 60 meters above the Gulf of Izmit, south ...